This document is relevant for: Trn1, Trn2, Trn3

nki.language.abs#

nki.language.abs(x, dtype=None)[source]#

Absolute value of the input, element-wise.

Warning

This API is experimental and may change in future releases.

Parameters:

  • x – a tile.

  • dtype – (optional) data type to cast the output type to (see Supported Data Types for more information); if not specified, it will default to be the same as the data type of the input tile.

Returns:

a tile that has absolute values of x.

Examples:

import nki.language as nl

# nki.language.abs
a = nl.full((128, 512), -1.0, dtype=nl.float32, buffer=nl.sbuf)
b = nl.abs(a)
expected = nl.full((128, 512), 1.0, dtype=nl.float32, buffer=nl.sbuf)
assert nl.equal(b, expected)

# nki.language.abs with explicit dtype
a = nl.full((128, 512), -1.0, dtype=nl.float32, buffer=nl.sbuf)
b = nl.abs(a, dtype=nl.float16)
expected = nl.full((128, 512), 1.0, dtype=nl.float32, buffer=nl.sbuf)
assert nl.equal(b, expected)

This document is relevant for: Trn1, Trn2, Trn3